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astro-ph2001★ 2 cited
Search for Spatial Variability in the Solar Acoustic Spectrum
P. Venkatakrishnan, Brajesh Kumar, S. C. Tripathy
Motivated by the various examples of spatial variability in the power of the acoustic spectrum, we attempted to look for spatial variability in the peak frequency of the spectrum.…
astro-ph2001★ 18 cited
Analysis of hysteresis effect in p mode frequency shifts and solar activity indices
S. C. Tripathy, Brajesh Kumar, Kiran Jain +1
Using intermediate degree p mode frequency data sets for solar cycle 22, we find that the frequency shifts and magnetic indices show a `hysteresis' phenomenon. It is observed that…